Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #18 Oct 09 2021 06:51:30
%S 1,0,2,0,2,0,4,0,3,0,5,0,3,0,7,0,5,0,7,0,4,0,11,0,5,0,8,0,8,0,12,0,6,
%T 0,13,0,6,0,15,0,10,0,11,0,7,0,21,0,10,0,13,0,12,0,18,0,9,0,22,0,9,0,
%U 21,0,14,0,16,0,14
%N Number of n-vertex 4-hedrites.
%C Is this the same as A145393 alternating with zeros? - _Andrey Zabolotskiy_, Jul 05 2017
%H Mathieu Dutour Sikiric, Michel Deza, <a href="http://arxiv.org/abs/0910.5323">4-regular and self-dual analogs of fullerenes</a>, arXiv:0910.5323 [math.GT], 2009.
%e Although every other term is zero, this sequence should be kept, contrary to the usual OEIS rules, to be analogous to the related sequences.
%Y Cf. A167157, A167158, A167159, A111361.
%K nonn
%O 2,3
%A _Jonathan Vos Post_, Oct 29 2009